ExpressionTask Class

Article
04/26/2013

Contains the members used to configure and run an Expression task.

Inheritance Hierarchy

System.Object
  Microsoft.SqlServer.Dts.Runtime.DtsObject
    Microsoft.SqlServer.Dts.Runtime.Task
      Microsoft.SqlServer.Dts.Tasks.ExpressionTask.ExpressionTask

Namespace: Microsoft.SqlServer.Dts.Tasks.ExpressionTask
Assembly: Microsoft.SqlServer.ExpressionTask (in Microsoft.SqlServer.ExpressionTask.dll)

Syntax

'Declaration
<GuidAttribute("2EE7D9A9-DA39-4F6F-A1E4-804F1FBC544C")> _
Public Class ExpressionTask _
    Inherits Task _
    Implements IDTSBreakpointSite, IDTSSuspend, IDTSComponentPersist
'Usage
Dim instance As ExpressionTask

[GuidAttribute("2EE7D9A9-DA39-4F6F-A1E4-804F1FBC544C")]
public class ExpressionTask : Task, 
    IDTSBreakpointSite, IDTSSuspend, IDTSComponentPersist

[GuidAttribute(L"2EE7D9A9-DA39-4F6F-A1E4-804F1FBC544C")]
public ref class ExpressionTask : public Task, 
    IDTSBreakpointSite, IDTSSuspend, IDTSComponentPersist

[<GuidAttribute("2EE7D9A9-DA39-4F6F-A1E4-804F1FBC544C")>]
type ExpressionTask =  
    class 
        inherit Task 
        interface IDTSBreakpointSite 
        interface IDTSSuspend 
        interface IDTSComponentPersist 
    end

public class ExpressionTask extends Task implements IDTSBreakpointSite, IDTSSuspend, IDTSComponentPersist

The ExpressionTask type exposes the following members.

Constructors

	Name	Description
	ExpressionTask	Initializes a new instance of the ExpressionTask class.

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Properties

	Name	Description
	DebugMode	Gets or sets a Boolean that indicates whether a task should determine whether breakpoints are enabled.
	ExecutionValue	Returns the result of the task execution. (Overrides Task.ExecutionValue.)
	Expression	Gets or sets the expression to be executed by the task.
	SuspendRequired	Gets or sets a Boolean that indicates whether tasks should suspend when they encounter a breakpoint. This value is set by the runtime engine for tasks and containers when a breakpoint is encountered.
	Version	* Member deprecated; see Remarks. * Returns the version of the task. This property is read-only. (Inherited from Task.)

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Methods

	Name	Description
	AcceptBreakpointManager	Called by the run-time engine when a task or container is created, and is passed a BreakpointManager to enable the task to create, remove, and check the status of breakpoints. This method is called by the runtime and is not used in code.
	CanUpdate	* Member deprecated; see Remarks. * A Boolean that indicates whether the new package XML can update the old package XML. (Inherited from Task.)
	Equals	Determines whether two object instances are equal. (Inherited from DtsObject.)
	Execute	Runs the task. (Overrides Task.Execute(Connections, VariableDispenser, IDTSComponentEvents, IDTSLogging, Object).)
	Finalize	(Inherited from Object.)
	GetConnectionID	Gets a String containing the ID of the connection. (Inherited from Task.)
	GetConnectionName	Gets a String containing the name of the connection. (Inherited from Task.)
	GetHashCode	Returns the hash code for this instance. (Inherited from DtsObject.)
	GetType	(Inherited from Object.)
	InitializeTask	Initializes the properties associated with the task. This method is called by the runtime and is not used in code. (Inherited from Task.)
	LoadFromXML	Loads the definition of the task, in XML format, from the XML definition of the package.
	MemberwiseClone	(Inherited from Object.)
	ResumeExecution	Resumes execution of the task after pausing. The task or container is resumed by the runtime engine.
	SaveToXML	Saves the definition of the task, in XML format, into the XML definition of the package.
	SuspendExecution	Indicates that the executable needs to suspend. This method is called by the runtime engine.
	ToString	(Inherited from Object.)
	Update	* Member deprecated; see Remarks. * This method updates the old package XML with the new package XML if CanUpdate is set to true. (Inherited from Task.)
	Validate	Verifies that the task is properly configured. (Overrides Task.Validate(Connections, VariableDispenser, IDTSComponentEvents, IDTSLogging).)
	ValidateExpression	Verifies that the expression is properly configured.

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Thread Safety

Any public static (Shared in Visual Basic) members of this type are thread safe. Any instance members are not guaranteed to be thread safe.

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